comScore, Inc. (NASDAQ: SCOR) is a global leader in measuring the digital world and preferred source of digital marketing intelligence. In an independent survey of 800 of the most influential publishers, advertising agencies and advertisers conducted by William Blair & Company in July 2008, comScore was rated the ‘most preferred online audience measurement service’ by 54% of respondents, a full 20 points ahead of its nearest competitor. comScore’s capabilities are based on a massive, global cross-section of approximately 2 million Internet users who have given comScore permission to confidentially capture their browsing and transaction behavior, including online and offline purchasing. comScore panelists also participate in survey research that gathers and integrates their attitudes and intentions. Using its proprietary technology, comScore measures what matters across a broad spectrum of digital behavior and attitudes, helping clients design more powerful marketing strategies that deliver superior ROI. With its recent acquisition of M:Metrics, comScore is also a leading source of data on mobile usage. comScore services are used by more than 1,200 clients, including global leaders such as AOL, Microsoft, Yahoo!, BBC, Carat, Cyworld, Deutsche Bank, France Telecom, Best Buy, The Newspaper Association of America, Financial Times, ESPN, Fox Sports, Nestlé, Starcom, Universal McCann, the United States Postal Service, the University of Chicago, Verizon Services Group and ViaMichelin. For more information, please visit www.comscore.com.